Debugger hangs in Visual Studio 2008 Professional

Hi,

I have a weird problem: when debugging the code in Visual Studio 2008 C++ Professional, the debugger hangs when I stop at a breakpoint and do nothing for a few minues. It only happens in one particular project. What could be the reason?

And what happens after these "few minues"?

The IDE simply hangs up - stops reacting to key presses or mouse clicks.

Another thing which also happens sometimes (before the hangup) is that "Locals" window of the debugger does not display any values or variable names (it should - the PDB files are there).

Where is the break point? Could it be that your App goes in modal state (calling AfxMessageBox, CDialog::domodal and so on)?

This is a DLL which is used by an Excel XLL addin. The breakpoints are usually in the middle of some computations. No dialogs are called, in fact it's not linking to any Windows libraries (except the Excel ones).

So, if it is not the case when the debugger waits for some user input then i don't know. Sorry!

Thanks for trying :) I didn't expect any definite answer, just some pointers in a probable direction.